Home / 28,342.98-39,111.66-15,593.99

Finding the Fourth Proportional to 28,342.98, 39,111.66 and 15,593.99

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Solution

The fourth proportional to 28,342.98, 39,111.66 and 15,593.99 is: 21,518.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.98 : 39,111.66 = 15,593.99 : x
  2. Step 2: Convert to fraction form
    28,342.98/39,111.66 = 15,593.99/x
  3. Step 3: Cross multiply
    28,342.98x = 39,111.66 × 15,593.99
  4. Step 4: Simplify right side
    28,342.98x = 609,906,639.37
  5. Step 5: Solve for x
    x = 609,906,639.37/28,342.98
  6. Step 6: Final answer
    x = 21,518.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.